42101406 has 24 divisors (see below), whose sum is σ = 91699920. Its totient is φ = 13959936.

The previous prime is 42101399. The next prime is 42101419. The reversal of 42101406 is 60410124.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2586 + ... + 9533.

It is an arithmetic number, because the mean of its divisors is an integer number (3820830).

Almost surely, 2^42101406 is an apocalyptic number.

42101406 is an abundant number, since it is smaller than the sum of its proper divisors (49598514).

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

42101406 is a wasteful number, since it uses less digits than its factorization.

42101406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320 (or 12317 counting only the distinct ones).

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

The square root of 42101406 is about 6488.5596244467. The cubic root of 42101406 is about 347.8821935764.

The spelling of 42101406 in words is "forty-two million, one hundred one thousand, four hundred six".