63401142 has 16 divisors (see below), whose sum is σ = 144916992. Its totient is φ = 18114600.

The previous prime is 63401141. The next prime is 63401171. The reversal of 63401142 is 24110436.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63401141) 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, 754734 + ... + 754817.

It is an arithmetic number, because the mean of its divisors is an integer number (9057312).

Almost surely, 2^63401142 is an apocalyptic number.

63401142 is an abundant number, since it is smaller than the sum of its proper divisors (81515850).

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

63401142 is a wasteful number, since it uses less digits than its factorization.

63401142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509563.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 63401142 is about 7962.4834065761. The cubic root of 63401142 is about 398.7484674161.

Adding to 63401142 its reverse (24110436), we get a palindrome (87511578).

The spelling of 63401142 in words is "sixty-three million, four hundred one thousand, one hundred forty-two".