692426640 has 40 divisors (see below), whose sum is σ = 2146523328. Its totient is φ = 184647040.

The previous prime is 692426627. The next prime is 692426641. The reversal of 692426640 is 46624296.

692426640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (692426641) by changing a digit.

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, 1442316 + ... + 1442795.

Almost surely, 2^692426640 is an apocalyptic number.

692426640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

692426640 is an abundant number, since it is smaller than the sum of its proper divisors (1454096688).

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

692426640 is a wasteful number, since it uses less digits than its factorization.

692426640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885127 (or 2885121 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 692426640 is about 26314.0008360568. Note that the first 3 decimals coincide. The cubic root of 692426640 is about 884.6902807180.

The spelling of 692426640 in words is "six hundred ninety-two million, four hundred twenty-six thousand, six hundred forty".