38497140 has 96 divisors (see below), whose sum is σ = 130677120. Its totient is φ = 9331200.

The previous prime is 38497139. The next prime is 38497153. The reversal of 38497140 is 4179483.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 38497095 and 38497104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2700 + ... + 9180.

It is an arithmetic number, because the mean of its divisors is an integer number (1361220).

Almost surely, 2^38497140 is an apocalyptic number.

38497140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38497140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65338560).

38497140 is an abundant number, since it is smaller than the sum of its proper divisors (92179980).

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

38497140 is a wasteful number, since it uses less digits than its factorization.

38497140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6510 (or 6502 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 38497140 is about 6204.6063533475. The cubic root of 38497140 is about 337.6573093825.

The spelling of 38497140 in words is "thirty-eight million, four hundred ninety-seven thousand, one hundred forty".