147427644 has 48 divisors (see below), whose sum is σ = 423385088. Its totient is φ = 38881728.

The previous prime is 147427639. The next prime is 147427649. The reversal of 147427644 is 446724741.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (147427639) and next prime (147427649).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147427649) 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, 66412 + ... + 68595.

Almost surely, 2^147427644 is an apocalyptic number.

147427644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

147427644 is an abundant number, since it is smaller than the sum of its proper divisors (275957444).

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

147427644 is a wasteful number, since it uses less digits than its factorization.

147427644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135034 (or 135032 counting only the distinct ones).

The product of its digits is 150528, while the sum is 39.

The square root of 147427644 is about 12141.9785867049. The cubic root of 147427644 is about 528.2744928341.

The spelling of 147427644 in words is "one hundred forty-seven million, four hundred twenty-seven thousand, six hundred forty-four".