1640152 has 8 divisors (see below), whose sum is σ = 3075300. Its totient is φ = 820072.

The previous prime is 1640147. The next prime is 1640167. The reversal of 1640152 is 2510461.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102502 + ... + 102517.

2^1640152 is an apocalyptic number.

It is an amenable number.

1640152 is a deficient number, since it is larger than the sum of its proper divisors (1435148).

1640152 is a wasteful number, since it uses less digits than its factorization.

1640152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205025 (or 205021 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1640152 is about 1280.6841921411. The cubic root of 1640152 is about 117.9310139715.

The spelling of 1640152 in words is "one million, six hundred forty thousand, one hundred fifty-two".