142451040 has 48 divisors (see below), whose sum is σ = 448722288. Its totient is φ = 37986816.

The previous prime is 142451021. The next prime is 142451051. The reversal of 142451040 is 40154241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 142450998 and 142451016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147907 + ... + 148866.

It is an arithmetic number, because the mean of its divisors is an integer number (9348381).

Almost surely, 2^142451040 is an apocalyptic number.

142451040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142451040 is an abundant number, since it is smaller than the sum of its proper divisors (306271248).

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

142451040 is a wasteful number, since it uses less digits than its factorization.

142451040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296791 (or 296783 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 142451040 is about 11935.2855014030. The cubic root of 142451040 is about 522.2621369488.

The spelling of 142451040 in words is "one hundred forty-two million, four hundred fifty-one thousand, forty".