787401138 has 32 divisors (see below), whose sum is σ = 1695712320. Its totient is φ = 242839040.

The previous prime is 787401133. The next prime is 787401179. The reversal of 787401138 is 831104787.

It is a junction number, because it is equal to n+sod(n) for n = 787401096 and 787401105.

It is not an unprimeable number, because it can be changed into a prime (787401133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59403 + ... + 71438.

It is an arithmetic number, because the mean of its divisors is an integer number (52991010).

Almost surely, 2^787401138 is an apocalyptic number.

787401138 is an abundant number, since it is smaller than the sum of its proper divisors (908311182).

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

787401138 is a wasteful number, since it uses less digits than its factorization.

787401138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130922.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 787401138 is about 28060.6688801247. The cubic root of 787401138 is about 923.4187302869.

The spelling of 787401138 in words is "seven hundred eighty-seven million, four hundred one thousand, one hundred thirty-eight".