1051403620 has 24 divisors (see below), whose sum is σ = 2213979264. Its totient is φ = 419412576.

The previous prime is 1051403599. The next prime is 1051403629. The reversal of 1051403620 is 263041501.

It is a super-2 number, since 2×1051403620² = 2210899144298208800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051403591 and 1051403600.

It is not an unprimeable number, because it can be changed into a prime (1051403629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64282 + ... + 78961.

It is an arithmetic number, because the mean of its divisors is an integer number (92249136).

Almost surely, 2^1051403620 is an apocalyptic number.

1051403620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051403620 is an abundant number, since it is smaller than the sum of its proper divisors (1162575644).

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

1051403620 is a wasteful number, since it uses less digits than its factorization.

1051403620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143619 (or 143617 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1051403620 is about 32425.3545855708. The cubic root of 1051403620 is about 1016.8490549186.

The spelling of 1051403620 in words is "one billion, fifty-one million, four hundred three thousand, six hundred twenty".