148452738 has 128 divisors (see below), whose sum is σ = 391495680. Its totient is φ = 36495360.

The previous prime is 148452691. The next prime is 148452797. The reversal of 148452738 is 837254841.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 148452738.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 420370 + ... + 420722.

It is an arithmetic number, because the mean of its divisors is an integer number (3058560).

Almost surely, 2^148452738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148452738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195747840).

148452738 is an abundant number, since it is smaller than the sum of its proper divisors (243042942).

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

148452738 is a wasteful number, since it uses less digits than its factorization.

148452738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its digits is 215040, while the sum is 42.

The square root of 148452738 is about 12184.1182692881. The cubic root of 148452738 is about 529.4960654413.

The spelling of 148452738 in words is "one hundred forty-eight million, four hundred fifty-two thousand, seven hundred thirty-eight".