20437002 has 16 divisors (see below), whose sum is σ = 45415680. Its totient is φ = 6812316.

The previous prime is 20436979. The next prime is 20437019. The reversal of 20437002 is 20073402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 189178 + ... + 189285.

It is an arithmetic number, because the mean of its divisors is an integer number (2838480).

Almost surely, 2^20437002 is an apocalyptic number.

20437002 is an abundant number, since it is smaller than the sum of its proper divisors (24978678).

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

20437002 is a wasteful number, since it uses less digits than its factorization.

20437002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378474 (or 378468 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20437002 is about 4520.7302507449. The cubic root of 20437002 is about 273.4045445366.

It can be divided in two parts, 2043 and 7002, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 20437002 in words is "twenty million, four hundred thirty-seven thousand, two".