20348154 has 24 divisors (see below), whose sum is σ = 44172180. Its totient is φ = 6769728.

The previous prime is 20348147. The next prime is 20348161. The reversal of 20348154 is 45184302.

It is an interprime number because it is at equal distance from previous prime (20348147) and next prime (20348161).

It can be written as a sum of positive squares in 2 ways, for example, as 17867529 + 2480625 = 4227^2 + 1575^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15142 + ... + 16430.

Almost surely, 2^20348154 is an apocalyptic number.

20348154 is an abundant number, since it is smaller than the sum of its proper divisors (23824026).

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

20348154 is a wasteful number, since it uses less digits than its factorization.

20348154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20348154 is about 4510.8928162837. The cubic root of 20348154 is about 273.0077685669.

It can be divided in two parts, 20348 and 154, that added together give a palindrome (20502).

The spelling of 20348154 in words is "twenty million, three hundred forty-eight thousand, one hundred fifty-four".