400004280148 has 12 divisors (see below), whose sum is σ = 763644534912. Its totient is φ = 181820127320.

The previous prime is 400004280133. The next prime is 400004280199. The reversal of 400004280148 is 841082400004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545503140 + ... + 4545503227.

It is an arithmetic number, because the mean of its divisors is an integer number (63637044576).

Almost surely, 2^400004280148 is an apocalyptic number.

It is an amenable number.

400004280148 is a deficient number, since it is larger than the sum of its proper divisors (363640254764).

400004280148 is a wasteful number, since it uses less digits than its factorization.

400004280148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091006382 (or 9091006380 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The spelling of 400004280148 in words is "four hundred billion, four million, two hundred eighty thousand, one hundred forty-eight".