690945360 has 160 divisors (see below), whose sum is σ = 2527076352. Its totient is φ = 152824320.

The previous prime is 690945341. The next prime is 690945403. The reversal of 690945360 is 63549096.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45447 + ... + 58713.

Almost surely, 2^690945360 is an apocalyptic number.

690945360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690945360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263538176).

690945360 is an abundant number, since it is smaller than the sum of its proper divisors (1836130992).

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

690945360 is a wasteful number, since it uses less digits than its factorization.

690945360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13321 (or 13315 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 690945360 is about 26285.8395338631. The cubic root of 690945360 is about 884.0589697427.

The spelling of 690945360 in words is "six hundred ninety million, nine hundred forty-five thousand, three hundred sixty".