148169940 has 48 divisors (see below), whose sum is σ = 419888448. Its totient is φ = 39034624.

The previous prime is 148169891. The next prime is 148169947. The reversal of 148169940 is 49961841.

It is a super-2 number, since 2×148169940² = 43908662239207200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 148169892 and 148169901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148169947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9897 + ... + 19856.

It is an arithmetic number, because the mean of its divisors is an integer number (8747676).

Almost surely, 2^148169940 is an apocalyptic number.

148169940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148169940 is an abundant number, since it is smaller than the sum of its proper divisors (271718508).

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

148169940 is a wasteful number, since it uses less digits than its factorization.

148169940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29848 (or 29846 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 148169940 is about 12172.5075477487. The cubic root of 148169940 is about 529.1596270238.

The spelling of 148169940 in words is "one hundred forty-eight million, one hundred sixty-nine thousand, nine hundred forty".