142670740 has 12 divisors (see below), whose sum is σ = 299608596. Its totient is φ = 57068288.

The previous prime is 142670713. The next prime is 142670743. The reversal of 142670740 is 47076241.

It can be written as a sum of positive squares in 2 ways, for example, as 57699216 + 84971524 = 7596^2 + 9218^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142670743) 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, 3566749 + ... + 3566788.

It is an arithmetic number, because the mean of its divisors is an integer number (24967383).

Almost surely, 2^142670740 is an apocalyptic number.

142670740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142670740 is an abundant number, since it is smaller than the sum of its proper divisors (156937856).

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

142670740 is a wasteful number, since it uses less digits than its factorization.

142670740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7133546 (or 7133544 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 142670740 is about 11944.4857570345. The cubic root of 142670740 is about 522.5304912649.

The spelling of 142670740 in words is "one hundred forty-two million, six hundred seventy thousand, seven hundred forty".