30401142 has 32 divisors (see below), whose sum is σ = 63651840. Its totient is φ = 9668160.

The previous prime is 30401123. The next prime is 30401149. The reversal of 30401142 is 24110403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30401149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12459 + ... + 14697.

It is an arithmetic number, because the mean of its divisors is an integer number (1989120).

Almost surely, 2^30401142 is an apocalyptic number.

30401142 is an abundant number, since it is smaller than the sum of its proper divisors (33250698).

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

30401142 is a wasteful number, since it uses less digits than its factorization.

30401142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 30401142 is about 5513.7230615982. The cubic root of 30401142 is about 312.1020581638.

Adding to 30401142 its reverse (24110403), we get a palindrome (54511545).

The spelling of 30401142 in words is "thirty million, four hundred one thousand, one hundred forty-two".