1049909720 has 32 divisors (see below), whose sum is σ = 2402341200. Its totient is φ = 412844928.

The previous prime is 1049909717. The next prime is 1049909723. The reversal of 1049909720 is 279099401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1049909717) and next prime (1049909723).

It is a super-2 number, since 2×1049909720² = 2204620840300956800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049909723) 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, 220079 + ... + 224798.

Almost surely, 2^1049909720 is an apocalyptic number.

1049909720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049909720 is an abundant number, since it is smaller than the sum of its proper divisors (1352431480).

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

1049909720 is a wasteful number, since it uses less digits than its factorization.

1049909720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444947 (or 444943 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1049909720 is about 32402.3104114506. The cubic root of 1049909720 is about 1016.3672257377.

The spelling of 1049909720 in words is "one billion, forty-nine million, nine hundred nine thousand, seven hundred twenty".