28437942 has 32 divisors (see below), whose sum is σ = 61463808. Its totient is φ = 8719776.

The previous prime is 28437931. The next prime is 28437977. The reversal of 28437942 is 24973482.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 28437942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34143 + ... + 34965.

It is an arithmetic number, because the mean of its divisors is an integer number (1920744).

Almost surely, 2^28437942 is an apocalyptic number.

28437942 is an abundant number, since it is smaller than the sum of its proper divisors (33025866).

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

28437942 is a wasteful number, since it uses less digits than its factorization.

28437942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284.

The product of its digits is 96768, while the sum is 39.

The square root of 28437942 is about 5332.7236943236. The cubic root of 28437942 is about 305.2338688225.

It can be divided in two parts, 284 and 37942, that added together give a triangular number (38226 = T₂₇₆).

The spelling of 28437942 in words is "twenty-eight million, four hundred thirty-seven thousand, nine hundred forty-two".