1051100040 has 32 divisors (see below), whose sum is σ = 3153300480. Its totient is φ = 280293312.

The previous prime is 1051100027. The next prime is 1051100053. The reversal of 1051100040 is 400011501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1051100027) and next prime (1051100053).

It is a super-2 number, since 2×1051100040² = 2209622588176003200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1051099989 and 1051100025.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4379464 + ... + 4379703.

It is an arithmetic number, because the mean of its divisors is an integer number (98540640).

Almost surely, 2^1051100040 is an apocalyptic number.

1051100040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051100040 is an abundant number, since it is smaller than the sum of its proper divisors (2102200440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051100040 is a wasteful number, since it uses less digits than its factorization.

1051100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8759181 (or 8759177 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1051100040 is about 32420.6730343465. The cubic root of 1051100040 is about 1016.7511779011.

Adding to 1051100040 its reverse (400011501), we get a palindrome (1451111541).

The spelling of 1051100040 in words is "one billion, fifty-one million, one hundred thousand, forty".