3698290440 has 128 divisors (see below), whose sum is σ = 13275964800. Its totient is φ = 910344960.

The previous prime is 3698290429. The next prime is 3698290441. The reversal of 3698290440 is 440928963.

3698290440 is a `hidden beast` number, since 36 + 98 + 2 + 90 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3698290441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117666 + ... + 145745.

It is an arithmetic number, because the mean of its divisors is an integer number (103718475).

Almost surely, 2^3698290440 is an apocalyptic number.

3698290440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3698290440 is an abundant number, since it is smaller than the sum of its proper divisors (9577674360).

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

3698290440 is a wasteful number, since it uses less digits than its factorization.

3698290440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263444 (or 263434 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 3698290440 is about 60813.5711827549. The cubic root of 3698290440 is about 1546.4421260026.

The spelling of 3698290440 in words is "three billion, six hundred ninety-eight million, two hundred ninety thousand, four hundred forty".