42621102 has 24 divisors (see below), whose sum is σ = 92501136. Its totient is φ = 14183136.

The previous prime is 42621101. The next prime is 42621107. The reversal of 42621102 is 20112624.

42621102 is a `hidden beast` number, since 42 + 621 + 1 + 0 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11458 + ... + 14714.

It is an arithmetic number, because the mean of its divisors is an integer number (3854214).

Almost surely, 2^42621102 is an apocalyptic number.

42621102 is an abundant number, since it is smaller than the sum of its proper divisors (49880034).

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

42621102 is a wasteful number, since it uses less digits than its factorization.

42621102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992 (or 3989 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42621102 is about 6528.4838975064. The cubic root of 42621102 is about 349.3077528307.

Adding to 42621102 its reverse (20112624), we get a palindrome (62733726).

It can be divided in two parts, 426 and 21102, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 42621102 in words is "forty-two million, six hundred twenty-one thousand, one hundred two".