42969900 has 72 divisors (see below), whose sum is σ = 127255744. Its totient is φ = 11188800.

The previous prime is 42969893. The next prime is 42969929. The reversal of 42969900 is 996924.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11235 + ... + 14565.

Almost surely, 2^42969900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42969900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63627872).

42969900 is an abundant number, since it is smaller than the sum of its proper divisors (84285844).

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

42969900 is a wasteful number, since it uses less digits than its factorization.

42969900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391 (or 3384 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 42969900 is about 6555.1430190347. The cubic root of 42969900 is about 350.2580410025.

It can be divided in two parts, 4296 and 9900, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 42969900 in words is "forty-two million, nine hundred sixty-nine thousand, nine hundred".