690574740 has 48 divisors (see below), whose sum is σ = 1935088512. Its totient is φ = 184012416.

The previous prime is 690574739. The next prime is 690574757. The reversal of 690574740 is 47475096.

It is a junction number, because it is equal to n+sod(n) for n = 690574692 and 690574701.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 92217 + ... + 99423.

It is an arithmetic number, because the mean of its divisors is an integer number (40314344).

Almost surely, 2^690574740 is an apocalyptic number.

690574740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

690574740 is an abundant number, since it is smaller than the sum of its proper divisors (1244513772).

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

690574740 is a wasteful number, since it uses less digits than its factorization.

690574740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8816 (or 8814 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 690574740 is about 26278.7887848736. The cubic root of 690574740 is about 883.9008730464.

The spelling of 690574740 in words is "six hundred ninety million, five hundred seventy-four thousand, seven hundred forty".