20152378 has 16 divisors (see below), whose sum is σ = 32690304. Its totient is φ = 9280960.

The previous prime is 20152367. The next prime is 20152381. The reversal of 20152378 is 87325102.

It is a super-2 number, since 2×20152378² = 812236678109768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4708 + ... + 7903.

It is an arithmetic number, because the mean of its divisors is an integer number (2043144).

Almost surely, 2^20152378 is an apocalyptic number.

20152378 is a deficient number, since it is larger than the sum of its proper divisors (12537926).

20152378 is a wasteful number, since it uses less digits than its factorization.

20152378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12677.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20152378 is about 4489.1400067273. The cubic root of 20152378 is about 272.1293808503.

It can be divided in two parts, 201523 and 78, that added together give a square (201601 = 449²).

The spelling of 20152378 in words is "twenty million, one hundred fifty-two thousand, three hundred seventy-eight".