43742152 has 8 divisors (see below), whose sum is σ = 82016550. Its totient is φ = 21871072.

The previous prime is 43742131. The next prime is 43742183. The reversal of 43742152 is 25124734.

It can be written as a sum of positive squares in only one way, i.e., 42588676 + 1153476 = 6526^2 + 1074^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×43742152³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 43742152.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2733877 + ... + 2733892.

Almost surely, 2^43742152 is an apocalyptic number.

It is an amenable number.

43742152 is a deficient number, since it is larger than the sum of its proper divisors (38274398).

43742152 is a wasteful number, since it uses less digits than its factorization.

43742152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467775 (or 5467771 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 43742152 is about 6613.7849980174. The cubic root of 43742152 is about 352.3438659336.

Adding to 43742152 its reverse (25124734), we get a palindrome (68866886).

The spelling of 43742152 in words is "forty-three million, seven hundred forty-two thousand, one hundred fifty-two".