42153490 has 16 divisors (see below), whose sum is σ = 78324480. Its totient is φ = 16317360.

The previous prime is 42153487. The next prime is 42153491. The reversal of 42153490 is 9435124.

It is not an unprimeable number, because it can be changed into a prime (42153491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67680 + ... + 68299.

It is an arithmetic number, because the mean of its divisors is an integer number (4895280).

Almost surely, 2^42153490 is an apocalyptic number.

42153490 is a deficient number, since it is larger than the sum of its proper divisors (36170990).

42153490 is a wasteful number, since it uses less digits than its factorization.

42153490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136017.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42153490 is about 6492.5719094978. The cubic root of 42153490 is about 348.0255904465.

The spelling of 42153490 in words is "forty-two million, one hundred fifty-three thousand, four hundred ninety".