38145380 has 48 divisors (see below), whose sum is σ = 98595840. Its totient is φ = 12071808.

The previous prime is 38145379. The next prime is 38145397. The reversal of 38145380 is 8354183.

38145380 = T₂₄₁₆ + T₂₄₁₇ + ... + T₂₄₂₈.

It is a happy number.

It is a congruent number.

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, 8660 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (2054080).

Almost surely, 2^38145380 is an apocalyptic number.

It is an amenable number.

38145380 is an abundant number, since it is smaller than the sum of its proper divisors (60450460).

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

38145380 is a wasteful number, since it uses less digits than its factorization.

38145380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20988 (or 20986 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 38145380 is about 6176.1946212858. The cubic root of 38145380 is about 336.6257354197.

The spelling of 38145380 in words is "thirty-eight million, one hundred forty-five thousand, three hundred eighty".