20153004 has 12 divisors (see below), whose sum is σ = 47023704. Its totient is φ = 6717664.

The previous prime is 20152969. The next prime is 20153009. The reversal of 20153004 is 40035102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20153004² = 812287140448032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20153009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839697 + ... + 839720.

It is an arithmetic number, because the mean of its divisors is an integer number (3918642).

Almost surely, 2^20153004 is an apocalyptic number.

It is an amenable number.

20153004 is an abundant number, since it is smaller than the sum of its proper divisors (26870700).

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

20153004 is a wasteful number, since it uses less digits than its factorization.

20153004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679424 (or 1679422 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20153004 is about 4489.2097300082. The cubic root of 20153004 is about 272.1321985695.

Adding to 20153004 its reverse (40035102), we get a palindrome (60188106).

The spelling of 20153004 in words is "twenty million, one hundred fifty-three thousand, four".