1051694436 has 36 divisors (see below), whose sum is σ = 2657244912. Its totient is φ = 323597664.

The previous prime is 1051694407. The next prime is 1051694447. The reversal of 1051694436 is 6344961501.

It is a super-2 number, since 2×1051694436² = 2212122373426716192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1051694394 and 1051694403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257266 + ... + 261321.

Almost surely, 2^1051694436 is an apocalyptic number.

It is an amenable number.

1051694436 is an abundant number, since it is smaller than the sum of its proper divisors (1605550476).

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

1051694436 is a wasteful number, since it uses less digits than its factorization.

1051694436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518620 (or 518605 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1051694436 is about 32429.8386674988. The cubic root of 1051694436 is about 1016.9427990363.

The spelling of 1051694436 in words is "one billion, fifty-one million, six hundred ninety-four thousand, four hundred thirty-six".