163748940 has 48 divisors (see below), whose sum is σ = 468260352. Its totient is φ = 42736576.

The previous prime is 163748929. The next prime is 163748951. The reversal of 163748940 is 49847361.

It is an interprime number because it is at equal distance from previous prime (163748929) and next prime (163748951).

It is a super-2 number, since 2×163748940² = 53627430702247200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163748892 and 163748901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26214 + ... + 31853.

It is an arithmetic number, because the mean of its divisors is an integer number (9755424).

Almost surely, 2^163748940 is an apocalyptic number.

163748940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163748940 is an abundant number, since it is smaller than the sum of its proper divisors (304511412).

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

163748940 is a wasteful number, since it uses less digits than its factorization.

163748940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58126 (or 58124 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 163748940 is about 12796.4424743754. The cubic root of 163748940 is about 547.0909101853.

The spelling of 163748940 in words is "one hundred sixty-three million, seven hundred forty-eight thousand, nine hundred forty".