1372076840 has 32 divisors (see below), whose sum is σ = 3105033480. Its totient is φ = 545655552.

The previous prime is 1372076831. The next prime is 1372076857. The reversal of 1372076840 is 486702731.

It can be written as a sum of positive squares in 4 ways, for example, as 1063933924 + 308142916 = 32618^2 + 17554^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1372076794 and 1372076803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92219 + ... + 106058.

Almost surely, 2^1372076840 is an apocalyptic number.

1372076840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372076840 is an abundant number, since it is smaller than the sum of its proper divisors (1732956640).

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

1372076840 is a wasteful number, since it uses less digits than its factorization.

1372076840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198461 (or 198457 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1372076840 is about 37041.5555828856. Note that the first 4 decimals coincide. The cubic root of 1372076840 is about 1111.2014801906.

The spelling of 1372076840 in words is "one billion, three hundred seventy-two million, seventy-six thousand, eight hundred forty".