42621430 has 8 divisors (see below), whose sum is σ = 76718592. Its totient is φ = 17048568.

The previous prime is 42621419. The next prime is 42621437. The reversal of 42621430 is 3412624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2131062 + ... + 2131081.

It is an arithmetic number, because the mean of its divisors is an integer number (9589824).

Almost surely, 2^42621430 is an apocalyptic number.

42621430 is a deficient number, since it is larger than the sum of its proper divisors (34097162).

42621430 is a wasteful number, since it uses less digits than its factorization.

42621430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262150.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42621430 is about 6528.5090181450. The cubic root of 42621430 is about 349.3086488864.

The spelling of 42621430 in words is "forty-two million, six hundred twenty-one thousand, four hundred thirty".